I have a docker image of the osrm-backend on github.
When I start the container a profile.lua script is run, which triggers a .cpp file to read the content of the file rastersource.asc.
The path of that file gets defined in the lua script.
The C file inside the image is located in scr/extractor/rastersource.cpp,
the profile.lua and rasterscource.asc are both in e:/docker
so they should both be within the volume.
What I do is I run the container with:
docker run -t -v e:/docker:/data osrm/osrm-backend osrm-extract -p /data/profile.lua /data/location-latest.osm.pbf
But now I struggle with defining the absolute path from which the rastersource.cpp should read the file.
.lua code:
raster_source = raster:load(
os.getenv('file/path/which/is/unknown.asc'),
4.86, -- longitude min
5.5, -- longitude max
51.95, -- latitude min
52.286, -- latitude max
169, -- number of rows
321 -- number of cols
),
.cpp code
int RasterContainer::LoadRasterSource(const std::string &path_string,
double xmin,
double xmax,
double ymin,
double ymax,
std::size_t nrows,
std::size_t ncols)
{
...
boost::filesystem::path filepath(path_string);
if (!boost::filesystem::exists(filepath))
{
throw util::RuntimeError(
path_string, ErrorCode::FileOpenError, SOURCE_REF, "File not found");
}
}
The Error I get is:
terminate called after throwing an instance of 'sol::error'
what(): lua: error: Problem opening file: (possible cause: "File not found") (at src/extractor/raster_source.cpp:112)
I found a lot of questions regarding this issue but I didn't understand any of the answers.
I hope someone here can help me with this. Thanks in advance.
CodePudding user response:
If your file is at e:/docker/rastersource.asc
on your host, it should be at /data/rastersource.asc
inside your container.
If your container has bash (for example) then it can be helpful to do something like
docker run -it -v e:/docker:/data osrm/osrm-backend osrm-extract bash
to run your container interactively, in order to manually have a look in the container filesystem and maybe run whatever other commands interactively.
CodePudding user response:
I was using os.getenv(). Without it everything works.